what are the properties of a buffer?

Question

The properties of a buffer and how it works.

Answer 1

The properties of a buffer are that the resist small changes in pH when an acid or a base is added.  They are made up of a weak acid or a weak base, the the salt of that weak acid or that weak base.  For a weak acid/conjugate base buffer, when an acid is added, it reacts with the conjugate base to produce the weak acid and when a base is added it reacts with the weak acid to produce the conjugate base.  Thus, changes in pH are reduced.